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As a multi-method with medium sensitivity, depending on the element and the matrix, ICP-OES provides stable and quantitative analysis for many elements to approximately 10 ppb. For checking the selectivity, a number of emission lines can be used in parallel. Because the number of emission lines can however lead to interference, this can in some cases prove to be disadvantageous. In general, the sensitivity for many elements is not as low as is the case with GR-AAS or ICP-MS. As a robust method, ICP-OES is however highly suitable for quantitative element determination or for qualitative overview analysis up to the middle levels of trace amounts.
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